00388nam a2200121Ia 450000500170000000800410001702000180005805000200007610000180009624500910011426000420020565000190024720251229085718.0251229s9999    xx            000 0 und d  a0 226 07870 1  aQL 362 .B8 1976  aBuchsbaun, R. 0aAnimals without backbonesb an introduction tothe invertebrates. 2nd. ed.cR Buchsbaun  aChicagob University of Chicagoc1979  aInvertebrates.